Horizontal and vertical components of earth’s magnetic field at a place are equal. The angle of dip at that place is ___ .

OR

A free floating magnetic needle at North Pole is____ to the surface of earth.

The dip angle 'x' at a point is defined as the angle between the direction of the Earth's magnetic field 'B' and the horizontal at that point on the surface of the Earth.

If Bv = Bh, then

x= = 45°

OR

Every magnet has a north pole and a south pole. Opposite magnetic poles are attracted to each other. For example, the north pole of one magnet would be attracted to the south pole of a second magnet.

At North Pole of the earth, the South Pole of magnetic needle will be attracted towards it while, North Pole of magnetic needle will be repelled. Thus, a free floating magnetic needle at North Pole is perpendicular to the surface of earth.